Automatic screw locking device

Abstract

The utility model relates to the technical field of automatic production equipment, and discloses an automatic screw locking device. The automatic screw locking device comprises a rack. The feeding mechanism is installed on the rack and comprises a material receiving assembly, a chuck assembly and a feeding pipe, a material receiving channel extending in the vertical direction is formed in the material receiving assembly, the chuck assembly is connected with the material receiving assembly and located below the material receiving channel, the chuck assembly has an opening state and a closing state, and the feeding pipe is used for conveying screws and is in pivot connection with the material receiving assembly; the feeding pipe can be kept at the position where the lower end extends into the material receiving channel; the lower end of the screwdriver head assembly extends into the material receiving channel; and the driving mechanism is mounted on the rack and can drive the screwdriver head assembly to rotate and move in the vertical direction, so that the screwdriver head assembly pushes the feeding pipe to rotate to retreat from the material receiving channel, be matched with the screw and open the chuck assembly. According to the automatic screw locking device, automatic feeding and locking of the screws can be achieved, the feeding position of the screws is accurate, and the material blocking problem is not prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic production equipment, in particular to an automatic screw locking device. Background Art

[0002] During the process of industrial production, screws are often used as fasteners to connect and fix devices. With the improvement of industrial production automation, automatic screw locking devices have been developed and applied.

[0003] In the prior art, an automatic screw locking device includes a feeding pipe, a receiving pipe, a chuck assembly, a bit assembly and a driving mechanism. The feeding pipe is arranged to be tangent to the receiving pipe. The chuck assembly is arranged at the lower end of the receiving pipe and can be closed and opened. The bit assembly is connected to the driving mechanism and its lower end extends into the receiving pipe. During the working process, the screw falls from the feeding pipe into the receiving pipe under the action of gravity or external force and is blocked by the chuck assembly. The driving mechanism drives the bit assembly to move downward to cooperate with the screw, and then further drives the bit assembly to move downward and open the chuck assembly, so that the screw extends from the lower end of the chuck assembly. Finally, the driving mechanism drives the screw to rotate.

[0004] In the above automatic screw locking device, when the screw falls from the feeding pipe into the receiving channel, it is easy to deflect, resulting in the problem of material jamming in the automatic screw locking device and affecting the production efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an automatic screw locking device, which can realize automatic feeding and locking of screws, and the screw feeding position is accurate, and the problem of material jamming is not easy to occur.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] An automatic screw locking device, comprising:

[0008] A frame;

[0009] A feeding mechanism, installed on the frame and including a receiving component, a chuck component and a feeding pipe. A receiving channel extending in the vertical direction is formed in the receiving component. The chuck component is connected to the receiving component and is located below the receiving channel. The chuck component has an open state and a closed state. The feeding pipe is used for conveying screws and is pivotally connected to the receiving component. The feeding pipe can be kept at a position where its lower end extends into the receiving channel;

[0010] A bit assembly, whose lower end extends into the receiving channel;

[0011] The driving mechanism is installed on the frame and can drive the bit assembly to rotate and move in the vertical direction, so that the bit assembly can push the feeding pipe to rotate out of the material receiving channel, cooperate with the screw, and open the chuck assembly.

[0012] As an alternative solution, the feeding mechanism further includes an elastic reset member. One end of the elastic reset member is connected to the material receiving component, and the other end is connected to the feeding pipe. The elastic reset member enables the lower end of the feeding pipe to maintain a position extending into the material receiving channel.

[0013] As an alternative solution, the chuck assembly includes two oppositely arranged clamping members. Each clamping member is pivotally connected to the material receiving component through a pivot. In the closed state, the lower ends of the two clamping members abut against each other. In the open state, the lower ends of the two clamping members rotate away from each other around the corresponding pivots.

[0014] As an alternative solution, the connection position of the pivot and the clamping member is higher than the center of gravity of the clamping member.

[0015] As an alternative solution, the feeding mechanism further includes a first lifting drive assembly installed on the frame. The material receiving component is connected to the output end of the first lifting drive assembly. The first lifting drive assembly can drive the material receiving component to move in the vertical direction so that the feeding pipe can be docked with an external feeding device.

[0016] As an alternative solution, the feeding mechanism further includes:

[0017] A limiting member, connected to the frame, for stopping the downward movement of the material receiving component; and / or

[0018] A first buffer member, connected to the frame, configured to elastically stop the downward moving material receiving component; and / or

[0019] A first guide rail, connected to the frame and extending in the vertical direction. The material receiving component is slidably engaged with the first guide rail.

[0020] As an alternative solution, the driving mechanism includes:

[0021] A connecting component, with which the bit assembly is rotationally engaged;

[0022] A second lifting drive assembly, installed on the frame. The connecting component is connected to the output end of the second lifting drive assembly. The second lifting drive assembly can drive the connecting component to move in the vertical direction;

[0023] A rotation drive assembly, capable of driving the bit assembly to rotate around its own axis.

[0024] As an alternative solution, the rotation driving assembly is connected to the frame, the bit assembly is movably connected to the output shaft of the rotation driving assembly, the bit assembly can move up and down relative to the output shaft, and the output shaft can drive the bit assembly to rotate around its own axis.

[0025] As an alternative solution, a mating hole is provided at the upper end of the bit assembly, the lower end of the output shaft is inserted into the mating hole, the cross-section of the mating hole is non-circular, and the cross-section of the output shaft is the same in shape and size as the cross-section of the mating hole.

[0026] As an alternative solution, the driving mechanism further includes:

[0027] A second guide rail, connected to the frame and extending in the vertical direction, and the connecting assembly is slidably engaged with the second guide rail; and / or

[0028] A second buffer member, connected to the frame, and the second buffer member is configured to elastically stop the connecting assembly moving downward; and / or

[0029] A third buffer member, connected to the frame, and the third buffer member is configured to elastically stop the connecting assembly moving upward.

[0030] The beneficial effects of the present utility model are as follows:

[0031] The automatic screw locking device of the present utility model includes a feeding mechanism, a bit assembly and a driving mechanism. The feeding mechanism includes a receiving assembly, a chuck assembly and a feeding pipe. The feeding pipe is pivotally connected to the receiving assembly and its lower end can extend into the receiving channel. When the automatic screw locking device is working, the screw enters the feeding pipe and moves to the lower end of the feeding pipe under the action of gravity, and then falls into the receiving channel; then the driving mechanism drives the bit assembly to move downward. The bit assembly first pushes the feeding pipe to rotate and retreat outside the receiving channel for avoidance; then the bit assembly continues to move downward to cooperate with the screw and opens the chuck assembly. At this time, the screw extends out from the lower end of the chuck assembly; finally, the driving mechanism drives the bit assembly to rotate, thereby driving the screw to rotate and screw in. In the automatic screw locking device of this embodiment, the lower end of the feeding pipe extends into the receiving channel, so as to better guide the falling trajectory of the screw into the receiving channel, thereby greatly reducing the risk of screw jamming and improving the working efficiency and user experience of the automatic screw locking device. Description of the Drawings

[0032] Figure 1 is a schematic structural view of the automatic screw locking device provided by the specific embodiment of the present utility model from one perspective;

[0033] Figure 2It is a partial structural schematic diagram of the feeding mechanism provided by the specific embodiment of the present utility model;

[0034] Figure 3 It is a side view of the partial structure of the feeding mechanism provided by the specific embodiment of the present utility model;

[0035] Figure 4 Is Figure 3 The A-A cross-sectional view in

[0036] Figure 5 It is a front view of the partial structure of the feeding mechanism provided by the specific embodiment of the present utility model;

[0037] Figure 6 Is Figure 5 The B-B cross-sectional view in

[0038] Figure 7 It is a structural schematic diagram of the automatic screw locking device provided by the specific embodiment of the present utility model from another perspective;

[0039] Figure 8 It is a schematic diagram of the cooperation state of the output shaft, the bit assembly and the connection assembly provided by the specific embodiment of the present utility model.

[0040] In the figure:

[0041] 10, frame; 11, main support plate; 12, first mounting plate; 13, second mounting plate; 14, third mounting plate;

[0042] 20, feeding mechanism; 21, material receiving assembly; 211, adapter plate group; 212, material receiving main body; 2121, material receiving channel; 213, first support plate; 214, second support plate; 215, rotating shaft; 216, third support plate; 22, chuck assembly; 221, clamping member; 222, pivot; 23, feeding pipe; 24, elastic reset member; 25, first lifting drive assembly; 26, limiting member; 27, first buffer member; 28, first guide rail; 29, guiding pipe;

[0043] 30, bit assembly; 31, sleeve; 311, mating hole; 32, bit main body;

[0044] 40, drive mechanism; 41, connection assembly; 42, second lifting drive assembly; 43, rotation drive assembly; 431, rotation drive source; 432, output shaft; 44, second guide rail; 45, second buffer member; 46, third buffer member. Specific embodiment

[0045] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0046] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0048] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0049] This embodiment provides an automatic screw locking device, as Figure 1 shown. The automatic screw locking device includes a frame 10, a feeding mechanism 20, a bit assembly 30, and a driving mechanism 40. Among them, the feeding mechanism 20 and the driving mechanism 40 are both installed on the frame 10. The bit assembly 30 is connected to the output end of the driving mechanism 40. The feeding mechanism 20 is used to receive screws from an external feeding device and correct the orientation of the screws. The driving mechanism 40 is used to drive the bit assembly 30 to extend into the feeding mechanism 20 to cooperate with the screws and drive the screws to rotate.

[0050] As Figures 1 - 4As shown, the feeding mechanism 20 includes a material receiving assembly 21, a chuck assembly 22 and a feeding pipe 23. The material receiving assembly 21 is connected to the frame 10 assembly, and a material receiving channel 2121 extending in the vertical direction is formed in the material receiving assembly 21. The chuck assembly 22 is connected to the material receiving assembly 21 and is located below the material receiving channel 2121. The chuck assembly 22 has an open state and a closed state. When the chuck assembly 22 is in the closed state, the screw can be prevented from falling out. When the chuck assembly 22 is in the open state, the screw and the bit assembly 30 can extend from the lower end of the feeding mechanism 20. The feeding pipe 23 is tilted and used to transport the screw. The feeding pipe 23 is pivotally connected to the material receiving assembly 21, and the feeding pipe 23 can maintain a position where the lower end extends into the material receiving channel 2121. The driving mechanism 40 can drive the screwdriver assembly 30 to rotate, and can also drive the screwdriver assembly 30 to move downward in the vertical direction, so that the screwdriver assembly 30 pushes the feeding tube 23 to rotate to a position where it exits the material receiving channel 2121, so that the screwdriver assembly 30 cooperates with the screw and the screwdriver assembly 30 opens the chuck assembly 22. It should be noted that Figure 4 The two screws shown in the figure are only a schematic diagram of the screw falling process. When the feeding mechanism 20 is working, the feeding pipe 23 only feeds one screw at a time. When the screw is used, the next screw is received.

[0051] When the automatic screw locking device is working, the screw enters the feed tube 23 and moves to the lower end of the feed tube 23 under the action of gravity, and then falls into the material receiving channel 2121; then the driving mechanism 40 drives the screwdriver bit assembly 30 to move downward, and the screwdriver bit assembly 30 first pushes the feed tube 23 to rotate until it exits the material receiving channel 2121 to avoid it; then the screwdriver bit assembly 30 continues to move downward to cooperate with the screw and opens the chuck assembly 22, at which time the screw extends from the lower end of the chuck assembly 22; finally, the driving mechanism 40 drives the screwdriver bit assembly 30 to rotate, thereby driving the screw to rotate and tighten. In the automatic screw locking device of this embodiment, the lower end of the feed tube 23 extends into the material receiving channel 2121, thereby better guiding the falling trajectory of the screw into the material receiving channel 2121, thereby greatly reducing the risk of the screw getting stuck and improving the working efficiency and user experience of the automatic screw locking device.

[0052] In this embodiment, Figures 1 - 4 As shown, the material receiving assembly 21 includes a material receiving body 212 and two first support plates 213. A material receiving channel 2121 is arranged in the material receiving body 212, and an opening is arranged on the side of the material receiving channel 2121, and the lower end of the feed pipe 23 can extend into the material receiving channel 2121 from the opening. The two first support plates 213 are both connected to the material receiving body 212 and are arranged opposite to each other. The feed pipe 23 is supported between the two first support plates 213 by a horizontally extending rotating shaft 215, so that the feed pipe 23 can rotate relative to the material receiving body 212, and then the lower end of the feed pipe 23 can extend into the material receiving channel 2121 or exit the material receiving channel 2121.

[0053] As Figure 4 shown, the feeding mechanism 20 further includes an elastic reset member 24. One end of the elastic reset member 24 is connected to the material receiving assembly 21, and the other end is connected to the feeding pipe 23. The elastic reset member 24 enables the lower end of the feeding pipe 23 to maintain a position extending into the material receiving channel 2121. By providing the elastic reset member 24, it is ensured that after the driving mechanism 40 drives the bit assembly 30 to move upward, the feeding pipe 23 can be smoothly reset to the position where its lower end extends into the material receiving channel 2121, so as to facilitate receiving the next screw and guiding the falling trajectory of the next screw. In this embodiment, the elastic reset member 24 is a spring. Specifically, the material receiving assembly 21 further includes a second support plate 214. The second support plate 214 is connected to the two first support plates 213 and is arranged on the side away from the material receiving main body 212. The elastic reset member 24 elastically presses between the feeding pipe 23 and the second support plate 214.

[0054] As Figure 1 shown, the feeding mechanism 20 further includes a guiding pipe 29. The material receiving assembly 21 further includes a third support plate 216. The third support plate 216 is connected to the two first support plates 213. The guiding pipe 29 is passed through and installed on the third support plate 216. The upper end of the guiding pipe 29 is used to dock with an external feeding device. As Figure 4 shown, when the lower end of the feeding pipe 23 is located at the position extending into the material receiving channel 2121, the lower end of the guiding pipe 29 is opposite to the upper end of the feeding pipe 23. The guiding pipe 29 is a component with a fixed position. By docking the guiding pipe 29 with an external feeding device, the stability of the material receiving process is ensured. In addition, the guiding pipe 29 can also preliminarily correct the posture of the screw to ensure that it enters the feeding pipe 23 in an appropriate posture.

[0055] As Figure 1As shown, the feeding mechanism 20 further includes a first lifting drive assembly 25. The first lifting drive assembly 25 is installed on the frame 10. The material receiving assembly 21 is connected to the output end of the first lifting drive assembly 25, and the first lifting drive assembly 25 can drive the material receiving assembly 21 to move in the vertical direction. In the screw feeding process of the screw locking device of this embodiment, the first lifting drive assembly 25 first drives the material receiving assembly 21, the feeding pipe 23 and the guiding pipe 29 to move upward as a whole to the material receiving position, so that the upper end of the guiding pipe 29 is docked with an external feeding device. During this process, the lower end of the feeding pipe 23 remains in the position where it extends into the material receiving channel 2121; when the screw enters the feeding pipe 23, the first lifting drive assembly 25 then drives the material receiving assembly 21, the feeding pipe 23 and the guiding pipe 29 to move downward as a whole to the working position, so as to facilitate subsequent cooperation with the bit assembly 30. In this embodiment, the frame 10 includes a main support plate 11 and a first mounting plate 12. The main support plate 11 is located in a vertical plane, and the first mounting plate 12 is connected to one side of the main support plate 11. The first lifting drive assembly 25 includes a cylinder, and the cylinder is installed on the first mounting plate 12. The material receiving assembly 21 further includes a transfer plate group 211. The transfer plate group 211 is connected to the output end of the cylinder, and the material receiving main body 212 is connected to the transfer plate group 211.

[0056] Preferably, as Figure 1 shown, the feeding mechanism 20 further includes a limiting member 26. The limiting member 26 is connected to the frame 10. The limiting member 26 is used to stop the downward movement of the material receiving assembly 21, that is, the limiting member 26 is used to limit the maximum distance of the downward movement of the material receiving assembly 21 to avoid collision between the material receiving assembly 21 and the part where the screw to be tightened is located. In this embodiment, the frame 10 further includes a second mounting plate 13. The second mounting plate 13 is installed on one side of the main support plate 11 and is located below the transfer plate group 211. The limiting member 26 is fixed on the second mounting plate 13, and the limiting member 26 can abut against the lower surface of the transfer plate group 211 to limit the material receiving assembly 21. Optionally, the limiting member 26 can be a bolt, and the bolt is threadedly connected to the second mounting plate 13.

[0057] As Figure 1 shown, the feeding mechanism 20 further includes a first buffer member 27. The first buffer member 27 is connected to the frame 10. The first buffer member 27 is configured to elastically stop the downward moving material receiving assembly 21. By providing the first buffer member, it can prevent the material receiving assembly 21 from colliding rigidly with the limiting member 26 and improve the service life of the automatic screw locking device. Optionally, the first buffer member is a hydraulic buffer. The first buffer member 27 is also installed on the second mounting plate 13.

[0058] As Figure 1As shown, the feeding mechanism 20 further includes a first guide rail 28. The first guide rail 28 is connected to the frame 10 and extends in the vertical direction. The material receiving assembly 21 is slidably engaged with the first guide rail 28. By providing the first guide rail 28, the lifting movement of the material receiving assembly 21 is guided to ensure that the movement direction of the material receiving assembly 21 is accurate and the process is smooth during the lifting process. In this embodiment, a first slider is connected to the transfer plate group 211, and the first slider is slidably engaged with the first guide rail 28.

[0059] As Figure 5 and Figure 6 shown, the chuck assembly 22 includes two oppositely arranged clamping members 221. Each clamping member 221 is pivotally connected to the material receiving assembly 21 through a pivot 222. In the closed state, the lower ends of the two clamping members 221 abut against each other, so as to prevent the screws from falling out; in the open state, the lower ends of the two clamping members 221 rotate away from each other around the corresponding pivot 222, so as to avoid the extension of the bit assembly 30 and the bolt. In this embodiment, both pivots 222 are connected to the material receiving main body 212. Preferably, the connection position of the pivot 222 and the clamping member 221 is higher than the center of gravity of the clamping member 221. Therefore, when there is no bit assembly 30 pushing the chuck assembly 22, the two clamping members 221 will remain in the closed state under the action of their own gravity, so as to simplify the structure of the feeding mechanism 20 and reduce the manufacturing cost of the automatic screw locking device. Of course, in other embodiments, the two clamping members 221 can also be kept in the closed state by elastic components, which will not be specifically limited here.

[0060] As Figure 7 shown, the driving mechanism 40 includes a connection assembly 41, a second lifting driving assembly 42 and a rotation driving assembly 43. The second lifting driving assembly 42 is installed on the frame 10. The connection assembly 41 is connected to the output end of the second lifting driving assembly 42. The bit assembly 30 is rotatably engaged with the connection assembly 41. The second lifting driving assembly 42 can drive the connection assembly 41 to move in the vertical direction. During the process of the second lifting driving assembly 42 driving the connection assembly 41 to descend, the bit assembly 30 descends synchronously, so as to realize the actions of the bit assembly 30 pushing the lower end of the feeding pipe 23 out of the material receiving channel 2121, the bit assembly 30 cooperating with the screw, and the bit assembly 30 opening the chuck assembly 22. The rotation driving assembly 43 can drive the bit assembly 30 to rotate around its own axis, so as to realize the screwing action of the screw.

[0061] In this embodiment, as Figure 7As shown, the frame 10 further includes a third mounting plate 14 which is mounted on one side of the main support plate 11. The second lifting drive assembly 42 includes a cylinder and is mounted on the third mounting plate 14. The upper end of the bit assembly 30 is rotatably connected to the connection assembly 41 through components such as bearings. In this embodiment, the bit assembly 30 includes a sleeve 31 and a bit body 32. The sleeve 31 is connected to the connection assembly 41 through a bearing, and the bit body 32 is connected to the lower end of the sleeve 31 and is used for cooperating with the screw. Optionally, the lower end of the bit body 32 has a magnetic attraction ability and can adsorb the screw to facilitate the cooperation with the screw. Optionally, the bit body 32 is detachably connected to the sleeve 31. When it is necessary to lock screws of different models, the corresponding bit body 32 can be replaced.

[0062] Preferably, as Figure 7 shown, the rotation drive assembly 43 is connected to the frame 10. The rotation drive assembly 43 includes a rotation drive source 431 and an output shaft 432. The output shaft 432 is connected to the output end of the rotation drive source 431. The bit assembly 30 is movably connected to the output shaft 432. The bit assembly 30 can move up and down relative to the output shaft 432, and the output shaft 432 can drive the bit assembly 30 to rotate around its own axis. By mounting the rotation drive assembly 43 on the frame 10 and making the output end of the rotation drive assembly 43 movably connected to the bit assembly 30, it can not only ensure that the rotation drive assembly 43 can drive the bit assembly 30 to rotate, but also during the process of the second lifting drive assembly 42 driving the bit assembly 30 to move up and down, the rotation drive assembly 43 itself does not move up and down, thereby being able to reduce the maximum power required by the second lifting drive assembly 42, and further reducing the manufacturing cost of the automatic screw locking device. In this embodiment, the rotation drive assembly 43 is mounted on the third mounting plate 14, and the output shaft 432 of the rotation drive assembly 43 penetrates downward through the third mounting plate 14 to facilitate docking with the bit assembly 30.

[0063] Specifically, as Figure 7 and Figure 8 shown, a mating hole 311 is provided at the upper end of the bit assembly 30, and the lower end of the output shaft 432 is inserted into the mating hole 311. The cross-section of the mating hole 311 is non-circular, and the cross-section of the output shaft 432 has the same shape and size as the cross-section of the mating hole 311. Therefore, when the second lifting drive assembly 42 drives the bit assembly 30 to move up and down, the bit assembly 30 can move up and down relative to the output shaft 432 and always maintain the cooperation with the output shaft 432, so as to facilitate the rotation drive assembly 43 to drive the bit assembly 30 to rotate. The structure is simple and the movement reliability is good. In this embodiment, the cross-section of the output shaft 432 is quadrilateral, and correspondingly, the cross-section shape of the mating hole 311 is also quadrilateral. In other embodiments, the cross-section shapes of the output shaft 432 and the mating hole 311 can be flexibly set and are not specifically limited herein.

[0064] As Figure 7 shown, the driving mechanism 40 further includes a second guide rail 44, which is connected to the frame 10 and extends in the vertical direction, and the connecting assembly 41 is slidably engaged with the second guide rail 44. By providing the second guide rail 44, the lifting movement of the connecting assembly 41 (i.e., the bit assembly 30) is guided to ensure that the movement direction of the bit assembly 30 is accurate and the process is smooth during the lifting process. In this embodiment, a second slider is provided on the connecting assembly 41, and the second slider is slidably engaged with the second guide rail 44.

[0065] As Figure 7 shown, the driving mechanism 40 further includes a second buffer member 45, which is connected to the frame 10, and the second buffer member 45 is configured to elastically stop the downward moving connecting assembly 41. The second buffer member 45 can not only limit the downward movement distance of the bit assembly 30, but also avoid rigid collision with the connecting assembly 41, ensuring the service life of the automatic screw locking device. Optionally, the second buffer member 45 can be a hydraulic buffer.

[0066] As Figure 7 shown, the driving mechanism 40 further includes a third buffer member 46, which is connected to the frame 10, and the third buffer member 46 is configured to elastically stop the upward moving connecting assembly 41. The third buffer member 46 can not only limit the upward movement distance of the bit assembly 30, but also avoid rigid collision with the connecting assembly 41, ensuring the service life of the automatic screw locking device. Optionally, the third buffer member 46 can be a hydraulic buffer.

[0067] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, based on the idea of the present invention, there will be changes in the specific implementation manners and application scopes. The content of this specification should not be construed as a limitation of the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Automatic screw locking device, characterized in that: include: Frame (10); A feeding mechanism (20) is installed on the frame (10) and comprises a material receiving assembly (21), a chuck assembly (22) and a feeding pipe (23); a material receiving channel (2121) extending in a vertical direction is formed in the material receiving assembly (21); the chuck assembly (22) is connected to the material receiving assembly (21) and is located below the material receiving channel (2121); the chuck assembly (22) has an open state and a closed state; the feeding pipe (23) is used for conveying screws and is pivotally connected to the material receiving assembly (21); the feeding pipe (23) can be kept in a position where the lower end of the feeding pipe (23) extends into the material receiving channel (2121); A screwdriver bit assembly (30), the lower end of which extends into the material receiving channel (2121); A driving mechanism (40) is mounted on the frame (10) and is capable of driving the screwdriver bit assembly (30) to rotate and move in a vertical direction, so that the screwdriver bit assembly (30) pushes the feed tube (23) to rotate to exit the material receiving channel (2121), cooperate with the screw, and open the chuck assembly (22).

2. The automatic screw locking device according to claim 1, characterized in that: The feeding mechanism (20) further comprises an elastic return member (24), one end of which is connected to the material receiving assembly (21), and the other end of which is connected to the feeding pipe (23). The elastic return member (24) enables the lower end of the feeding pipe (23) to be maintained in a position extending into the material receiving channel (2121).

3. The automatic screw locking device according to claim 1, characterized in that: The clamping head assembly (22) comprises two clamping members (221) arranged opposite to each other, each of the clamping members (221) being pivotally connected to the material receiving assembly (21) via a pivot (222); in the closed state, the lower ends of the two clamping members (221) abut against each other; in the open state, the lower ends of the two clamping members (221) are spaced apart from each other around the corresponding pivot (222).

4. The automatic screw locking device according to claim 3, characterized in that: The connection position between the pivot (222) and the clamping member (221) is higher than the center of gravity of the clamping member (221).

5. The automatic screw locking device according to claim 1, characterized in that: The feeding mechanism (20) further comprises a first lifting drive assembly (25) mounted on the frame (10), the material receiving assembly (21) being connected to an output end of the first lifting drive assembly (25), and the first lifting drive assembly (25) being capable of driving the material receiving assembly (21) to move in a vertical direction so that the feeding pipe (23) can dock with an external feeding device.

6. The automatic screw locking device according to claim 5, characterized in that: The feeding mechanism (20) further comprises: a stopper (26) connected to the frame (10), the stopper (26) being used to stop the material receiving assembly (21) from moving downward; and / or a first buffer member (27) connected to the frame (10), wherein the first buffer member (27) is configured to elastically stop the material receiving assembly (21) from moving downward; and / or A first guide rail (28) is connected to the frame (10) and extends in a vertical direction, and the material receiving assembly (21) is slidably matched with the first guide rail (28).

7. The automatic screw locking device according to any one of claims 1 to 6, characterized in that: The driving mechanism (40) comprises: A connecting assembly (41), the bit assembly (30) and the connecting assembly (41) are rotatably matched; A second lifting drive component (42) is installed on the frame (10), the connecting component (41) is connected to the output end of the second lifting drive component (42), and the second lifting drive component (42) can drive the connecting component (41) to move in a vertical direction; The rotary drive assembly (43) can drive the bit assembly (30) to rotate around its own axis.

8. The automatic screw locking device according to claim 7, characterized in that: The rotary drive assembly (43) is connected to the frame (10), and the bit assembly (30) is movably connected to an output shaft (432) of the rotary drive assembly (43). The bit assembly (30) can move up and down relative to the output shaft (432), and the output shaft (432) can drive the bit assembly (30) to rotate around its own axis.

9. The automatic screw locking device according to claim 8, characterized in that: The upper end of the bit assembly (30) is provided with a matching hole (311), the lower end of the output shaft (432) is inserted into the matching hole (311), the cross section of the matching hole (311) is non-circular, and the cross section of the output shaft (432) is the same shape and equal in size to the cross section of the matching hole (311).

10. The automatic screw locking device according to claim 7, characterized in that: The driving mechanism (40) further comprises: a second guide rail (44) connected to the frame (10) and extending in a vertical direction, the connecting assembly (41) being slidably matched with the second guide rail (44); and / or a second buffer member (45) connected to the frame (10), wherein the second buffer member (45) is configured to elastically stop the connecting assembly (41) from moving downward; and / or A third buffer member (46) is connected to the frame (10), and the third buffer member (46) is configured to elastically stop the connecting component (41) from moving upward.

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